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/* \file
   \brief In-memory compiled artifact cache
*/

#include <pybind11/pybind11.h>
#include <string>
#include <unordered_map>


namespace py = pybind11;

namespace cutlass {

struct CompileCache {
public:
    CompileCache() = default;
    ~CompileCache() = default;

    using Cache = std::unordered_map<std::string, py::object>;

    /// Check if the kernel has already been compiled
    py::object at(const std::string &kernel) {
        auto item = cache_.find(kernel);

        if (item != cache_.end()) {
            return item->second;
        }
        return py::none();
    }

    /// Insert a new compiled kernel for new configuration
    void insert(const std::string &kernel, const py::object &compiled_kernel){
        cache_.emplace(kernel, compiled_kernel);
    }

    const int64_t size() const { return cache_.size(); }

    /// Clear the cache
    void clear() { cache_.clear(); }

private:
    Cache cache_;
};

} // namespace cutlass
